Revert "App sidebar [2/2]"

This reverts commit d3b388c3a0eb33ef76311040889bf512974ef668.
Revert "Remove app sidebar"

This reverts commit daddaba6f9a39d94d609e5417f316b1e1db5fd53.
Revert "Appbar changes to compile and work with new CM "Display Settings: Better font size control" commit"

This reverts commit 54c6e12553f74269cc677b78128d2644f819b8e8.
Revert "Changing @ppbar to Appbar"

This reverts commit e71bba5c202879ca4b66b85fce4a64813f6038eb.
Revert "Remove this"

This reverts commit 0b8d74317a19407225b46672123274f9468379d0.
Revert "App sidebar [2/2]"

This reverts commit 34146383d6bcc213379d39a79cb945938dd7d265.